What modifications can be made to manufactured fibers and how?

How can manufactured fibers be modified in size?

By changing the spinneret hole size.

Microfibers

• Softer/silk-like

• More drapeable

• Water repellent

• Comfortablez

Nanofibers

• Enhance mechanical/electrical properties

• Flexible surface

• Biocompatibility

Changing the internal structure

• To increase strength

• Reduce pilling

• Decrease melting point

Deluster

white pigments added to dull the fibers

Solution dyeing

adding pigments/dyes

Whiteners

make fibers permanently white and resist yellowing

Cross–dyeable additive

allows fibers to be easily dyed later using a variety of different dyes for more variations

Antistatics

reduce static cling, shocks, and the attraction of soil

Crimp

• Increase bulk

• Gives elongation and elastic recovery

Flame–resistant/retardants

prevent ignition & burning

Antibacterial/microbial

reduce odors, bacterial, and mildew